Current location - Training Enrollment Network - Mathematics courses - Urgent, how to calculate the square of A minus 4a plus 3 is equal to 0, and what mathematical formula to use, needs a complete solution, thank you.
Urgent, how to calculate the square of A minus 4a plus 3 is equal to 0, and what mathematical formula to use, needs a complete solution, thank you.
First, based on the square of A, its coefficient is 1, so the left side is 1. Second, based on the last +3, because its sign is positive, the right side is either a sign or a plus sign.
Finally, based on the middle -4, it is determined that the numbers on the right are all negative signs, and the multiplication and addition of the left and right are equal to the middle -4.